Abstract The TWOSTEP algorithm is examined for the case where the centered portion of the negative-log-likelihood function provides incomplete observability of the magnetometerbias vector. In those cases where the full negative-log-likelihood function provides a complete estimate, the TWOSTEP algorithm can be modified to provide an estimate of all three components of the magnetometer bias vector. However, the procedure leads to a discrete degeneracy of the estimate which can be resolved only by explicit evaluation of the negative-log-likelihood.


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    Title :

    Centering and Observability in Attitude-Independent Magnetometer-Bias Determination


    Contributors:


    Publication date :

    2003




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English



    Classification :

    BKL:    55.60 Raumfahrttechnik
    Local classification TIB:    770/7040




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    Alonso, Roberto / Shuster, Malcolm D. | Springer Verlag | 2003



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